Analysis
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max time kernel
126s -
max time network
129s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
06-05-2024 04:50
Static task
static1
Behavioral task
behavioral1
Sample
a1b36d724e8313710906193a8361f0a502c4b660b14c0b53e8c363e9628ef5d8.exe
Resource
win10v2004-20240419-en
General
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Target
a1b36d724e8313710906193a8361f0a502c4b660b14c0b53e8c363e9628ef5d8.exe
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Size
416KB
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MD5
c57a53203a9857e7c8f6d3881da416dd
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SHA1
a5f71f2775d7805a68875064f645dc87b9accdd4
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SHA256
a1b36d724e8313710906193a8361f0a502c4b660b14c0b53e8c363e9628ef5d8
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SHA512
ee25baff124c0284dea49e8971e11cd912d8a23683cbd35cd7d380ec4e93d05877001bec61475d39fc05795e27a60608b4f677d86a2fc37517aff13d5da7c235
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SSDEEP
6144:EkIIKkd5F7LcRmt5tuGEBQ4ZHXbA/3TntkIKcqFWWgfLR8tai1:E3DkzF7gmt5tuPBQ6LO3btbKnuLWtf1
Malware Config
Extracted
stealc
http://185.172.128.150
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url_path
/c698e1bc8a2f5e6d.php
Signatures
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Detect ZGRat V1 3 IoCs
resource yara_rule behavioral2/memory/4924-146-0x000001F6E6880000-0x000001F6EA178000-memory.dmp family_zgrat_v1 behavioral2/memory/4924-147-0x000001F6ECAB0000-0x000001F6ECBC0000-memory.dmp family_zgrat_v1 behavioral2/memory/4924-151-0x000001F6EC010000-0x000001F6EC034000-memory.dmp family_zgrat_v1 -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
pid Process 3368 u2zs.0.exe 540 u2zs.1.exe -
Loads dropped DLL 2 IoCs
pid Process 3368 u2zs.0.exe 3368 u2zs.0.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 4172 3880 WerFault.exe 79 -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u2zs.1.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u2zs.1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u2zs.1.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 u2zs.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString u2zs.0.exe -
Suspicious behavior: EnumeratesProcesses 25 IoCs
pid Process 3368 u2zs.0.exe 3368 u2zs.0.exe 3368 u2zs.0.exe 3368 u2zs.0.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4924 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 540 u2zs.1.exe 540 u2zs.1.exe 540 u2zs.1.exe 540 u2zs.1.exe 540 u2zs.1.exe 540 u2zs.1.exe 540 u2zs.1.exe -
Suspicious use of SendNotifyMessage 7 IoCs
pid Process 540 u2zs.1.exe 540 u2zs.1.exe 540 u2zs.1.exe 540 u2zs.1.exe 540 u2zs.1.exe 540 u2zs.1.exe 540 u2zs.1.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3880 wrote to memory of 3368 3880 a1b36d724e8313710906193a8361f0a502c4b660b14c0b53e8c363e9628ef5d8.exe 81 PID 3880 wrote to memory of 3368 3880 a1b36d724e8313710906193a8361f0a502c4b660b14c0b53e8c363e9628ef5d8.exe 81 PID 3880 wrote to memory of 3368 3880 a1b36d724e8313710906193a8361f0a502c4b660b14c0b53e8c363e9628ef5d8.exe 81 PID 3880 wrote to memory of 540 3880 a1b36d724e8313710906193a8361f0a502c4b660b14c0b53e8c363e9628ef5d8.exe 84 PID 3880 wrote to memory of 540 3880 a1b36d724e8313710906193a8361f0a502c4b660b14c0b53e8c363e9628ef5d8.exe 84 PID 3880 wrote to memory of 540 3880 a1b36d724e8313710906193a8361f0a502c4b660b14c0b53e8c363e9628ef5d8.exe 84 PID 540 wrote to memory of 4924 540 u2zs.1.exe 90 PID 540 wrote to memory of 4924 540 u2zs.1.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\a1b36d724e8313710906193a8361f0a502c4b660b14c0b53e8c363e9628ef5d8.exe"C:\Users\Admin\AppData\Local\Temp\a1b36d724e8313710906193a8361f0a502c4b660b14c0b53e8c363e9628ef5d8.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3880 -
C:\Users\Admin\AppData\Local\Temp\u2zs.0.exe"C:\Users\Admin\AppData\Local\Temp\u2zs.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3368
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C:\Users\Admin\AppData\Local\Temp\u2zs.1.exe"C:\Users\Admin\AppData\Local\Temp\u2zs.1.exe"2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:540 -
C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe"C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD13⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4924
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3880 -s 12442⤵
- Program crash
PID:4172
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3880 -ip 38801⤵PID:4248
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
11KB
MD5a33e5b189842c5867f46566bdbf7a095
SHA1e1c06359f6a76da90d19e8fd95e79c832edb3196
SHA2565abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
SHA512f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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Filesize
2KB
MD5c690ef9e3e0b14b2316e88e515674ad8
SHA1b428960d8b8534d85f75a24e3d083ac4bc38803b
SHA2561df1596a58022d20cc7234199f230c0b7b6da262243b670735ccee42b0f9a9f6
SHA512ccd2cf55f6634560ae006f4e1349dbabc622cf23d3df0d2a41d4267107642ca2fa47bd1946c7e53c6940f1878af073daf656de23e679f47c02fd0faf9deb9947
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Filesize
3KB
MD55d2d6f146b5571831a3085932b78cf08
SHA1d1a61d101d9655a104010e299fb0405581254108
SHA256e6cbf4fc5bff2c2b992407411bd77bffbe2d8eefa01d993f62fdc09de0f2ef75
SHA512819e7dbb7c7470c397c25063b40533c10c4ebcfa1a46865c9cdfa956ae7bb6f5116a40e739b23385c973c7bec61c6a4735e03ad11c1be34c0fb85a80f5489332
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Filesize
275KB
MD531c1bdc2c9075e8c2eab9353c41c117f
SHA1ab28fb009dc8c2fa244c773760109e38711b1025
SHA2564e08b9b37494a1917d2ab809fff59b3a45673a80d25587e51c8749331bb56233
SHA51278b995611e33b441e9ebaeecbbce3ec96bbfcac7f71bd0f639ab1e3394900be5c80893dfc8957b696609eca7ce1933d58f026c7be389795f0dcc72ad3fc35593
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Filesize
4.6MB
MD5397926927bca55be4a77839b1c44de6e
SHA1e10f3434ef3021c399dbba047832f02b3c898dbd
SHA2564f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
SHA512cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954